|
US3352204A
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Frame for supporting a transparency and sound reproducing material
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Devices for automatic return of the pick-up arm to the normal position in record players
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Phonograph arms for recording apparatus
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Gramophone record distributing devices for gramophone record changers
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Devices for locking the chassis of record turnatables, record changers and the like turntable apparatus
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Change-speed mechanism for phonograph drives
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Movable tone arm rest
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Phonograph record adapter
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Phonograph apparatus
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Phonograph apparatus
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Phonographic apparatus
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Advertising device
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Means for centering gramophone records
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